Vacuum interrupter

Details Vacuum interrupter Vacuum interrupter

1984-03-20

1987-04-21

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

H01H 3366

Patent

active

046598855

ABSTRACT:
A vacuum interrupter of improved large current interrupting capability and dielectric strength has a pair of separable electrodes (5,6) a vacuum envelope (4) electrically insulating and enclosing the pair therewithin, a contact-making portion (14) of material of 20 to 60% IACS electrical conductivity being a part of one electrode (6) of the pair, a magnetically arc-rotating portion (13) of material of 2 to 30% IACS electrical conductivity secured to the contact-making portion (14) so as to be apart from the other electrode (5) when the electrodes (5,6) are in engagement, and means, which include a plurality of slots extending radially and circumferentially of the magnetically arc-rotating portion (13) and being apart from each other, for magnetically rotating the arc established between the electrodes (5,6) on an arcing surface of the electrode (6).

REFERENCES:
patent: 3246979 (1966-04-01), Lafferty et al.
patent: 3462572 (1969-08-01), Sofianek
patent: 3811939 (1974-05-01), Hassler et al.
patent: 4347413 (1982-08-01), Watanabe et al.
patent: 4471184 (1984-09-01), Sano et al.

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